It is a good time ______.

How long have you been there? —_______.[ ]

It is the discovery of Cao Cao’s tomb, _____ was made in Anyang, Henan province, ____ has received widespread attention．

______ of the students in my class plan to go abroad for ______ study in the future.

Hundreds of _________ people _________ the streets and parks of London to watch the royal wedding on video screens.